Perhaps you should try some spelling variations:
yuan wang » yuan kang, yuan chang, qian wang
zhang xin » zhang jian, zhang ming, zhang yan
yan wang » yang yang, qian wang, yan liang
tong seo » hong seo, von seo
kong sek » kong weak, kong sar, kong k
yi chen » jui chen
yan yi » yang yi, tan yi, yan zi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yuan wang)) yan yi chen ((zhang xin) or (zhang fan)) ((tong seo) OR (kong sek)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yuan wang)) yan yi chen ((zhang xin) OR (zhang fan)) ((tong seo) OR (kong sek)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yuan wang)) yan yi chen ((zhang xin) or (zhang fan)) ((tong seo) OR (kong sek)) ;*".